Uploaded December 2025 | Updated September 2026, 2 weeks ago
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What is time? That question is hard to answer because it’s really asking a bunch of different questions, like “Why does it feel like time passes?”; “What separates now from the future and past?”; “Where does time come from?” and “What do we even mean by time?” Today I have a look at all those questions and what physics has taught us about them.
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#science #philosophy #physics
Check out mathematics and science courses on Brilliant! Start learning for free at brilliant.org/sabine and get 20% off a premium subscription, which includes daily unlimited access!
What is time? That question is hard to answer because it’s really asking a bunch of different questions, like “Why does it feel like time passes?”; “What separates now from the future and past?”; “Where does time come from?” and “What do we even mean by time?” Today I have a look at all those questions and what physics has taught us about them.
👕T-shirts, mugs, posters and more: ➜ sabines-store.dashery.com
💌 Support me on Donorbox ➜ donorbox.org/swtg
👉 Transcript with links to references on Patreon ➜ patreon.com/Sabine
📝 Transcripts and written news on Substack ➜ sciencewtg.substack.com
📩 Free weekly science newsletter ➜ sabinehossenfelder.com/newsletter
👂 Audio only podcast ➜ open.spotify.com/show/0MkNfXlKnMPEUMEeKQYmYC
🔗 Join this channel to get access to perks ➜
youtube.com/channel/UC1yNl2E66ZzKApQdRuTQ4tw/join
📚 Buy my book ➜ amzn.to/3HSAWJW
#science #philosophy #physics
